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Give a chemical test to distinguish betwern butter and cooking oil.

Answer» Butter is saturated compound and oil is unsaturated compound.Alk. potassium permanganate + unsaturated hydrocarbon → pink colour disappear(Pink colour) Therefore, when we add oil to a test tube containing alkaline potassium permanganate solution, the pink colour of the solution disappear. Colour of alkaline potassium permanganate will not disappear in the test tube containing butter.


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